Dynamic Apply

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport, 2017 Land Rover Discovery Sport, 2016 Land Rover Discovery Sport, and 2015 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.

While the vehicle is moving, the dynamic apply mode provides emergency braking. At a vehicle speed greater than 3km/h (2mph), pulling up and holding the EPB switch produces a gradual deceleration of the vehicle. The red park brake warning indicator illuminates, accompanied by a warning in the message center and a warning chime. The vehicle stop lamps also illuminate, activated by a CAN bus message from the ABS control module to the CJB. Dynamic apply operation is cancelled if the EPB switch is either released or pressed down to the release position, or the accelerator pedal is pressed.

There are four modes of dynamic apply, which the ABS control module uses in the following order of preference:

Hydraulic Dynamic Brake Function (HDBF)
Degraded Dynamic Brake Function (DDBF).
Actuator Dynamic Brake Function (ADBF).

The HDBF and DDBF modes use hydraulic braking on all four wheels to decelerate the vehicle. The ADBF mode uses the EPB actuators to operate the rear brakes to decelerate the vehicle.